Home / 143,832.40-198,514.08-90,163.44

Finding the Fourth Proportional to 143,832.40, 198,514.08 and 90,163.44

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Solution

The fourth proportional to 143,832.40, 198,514.08 and 90,163.44 is: 124,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,832.40 : 198,514.08 = 90,163.44 : x
  2. Step 2: Convert to fraction form
    143,832.40/198,514.08 = 90,163.44/x
  3. Step 3: Cross multiply
    143,832.40x = 198,514.08 × 90,163.44
  4. Step 4: Simplify right side
    143,832.40x = 17,898,712,341.24
  5. Step 5: Solve for x
    x = 17,898,712,341.24/143,832.40
  6. Step 6: Final answer
    x = 124,441.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.